We’ve never really considered Tumblr to be a beacon of intelligent discussion and debate. To be honest, 99% of Tumblr posts have a hashtag that can somehow be traced back to One Direction, and an even higher percentage of posts are GIFs, most serving as illustrations for some sort of fan fiction.

But, this amazing Tumblr conversation that is doing the rounds on the Internet today may have just changed our minds.

It started with this ill-informed analogy, posted by an anti-vaxxer:

But then the post was seen by an immunologist. And that’s when things started to get interesting:

And more interesting:

And even MORE interesting:

Until the debate was shut down. And rationality had won.

At which point Tumblr celebrated in the only way that Tumblr knows how: